Warning: file_put_contents(): Only 0 of 4998 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/28094.com/index.php on line 55 shaping and piercing die例句_shaping and piercing die英汉例句_shaping and piercing die双解例句_贰靶汉英词典
The extrusion and piercing die was developed based on the technical analysis on the shaping characteristics of deep taper pipe with hole. 针对带孔深锥形管件的成形特点进行了工艺分析，确定了成形方案，设计了锥形管挤压模和冲孔模。